# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,330 questions, page 795
1. ## Math help please.

this is for a practice test. i just need the explanation on how to solve them and help solving them. or for a couple of them to check my answers. write each expression using a single exponent. 1) x^9/x^2 A)x^11** B)x^7 C)7 D)x^5 2) h^14/h^5 A)h^-9 B)h^1/9

asked by UMACBLACKBELT on June 8, 2015
2. ## Physics

A military gun is mounted on a railroad car (m = 1500 kg). There is no frictional force on the car, the track is horizontal, and the car is initially at rest. The gun then fires a shell of mass 30 kg with a velocity of 300 m/s at an angle of 40° with

asked by Jessica on April 23, 2016
3. ## chemistry

Can somebody point out the step i have to take to solve this problem. It would be much appreciated. Thanks a lot!!!! _____________________________________________________________________________________________________________________ Asprin, C9H8O4, is

asked by manny on September 16, 2007
4. ## P.E

Whats the point of physical education? This is an excellent article on the value of PE in school. http://www.ericdigests.org/1997-4/physical.htm I can think of several reasons right off the top of my head It teaches team work; it provides needed physical

asked by Mike on April 6, 2007
5. ## History

Which answer best describes a main benefit of the Transcontinental Railroad? A.)It proved to the world that the United States was capable of great feats of engineering. B.)It created safe, high-paying jobs for immigrants who wanted to work building the

asked by #FreeGucci on February 24, 2016
6. ## groupie

can someone help me with this:48x^2y + 20xz +12xy + 5z This subject is MATH, not 'groupie'!! HOW MANY SQUARE FEET IN AN HALF AN AKER Wendy: ACRE> http://www.onelook.com/?w=acre&ls=a and there are 9 square feed in a square yard. i am in 6 grade it is really

asked by mike on March 8, 2007
7. ## Chemistry

You will titrate your weak acid unknowns with a solution of NaOH of about 0.10 mol/L. The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What are the smallest

asked by LU on March 4, 2010
8. ## AP Chem

Hey guys! Thanks for any help in advance! I'm back with this problem: Calculate the percent dissociation for a 1.00 × 10-6 M solution of HCN at 25 °C. Ka = 4.90 × 10-10. So my question really is do I have to use water when I calculate the percent

asked by Allie on October 12, 2015
9. ## Chemistry

I need help with two problems need helps please!! 1) Calculate the surface area in nm^2 of a water solution contained in a watch glass with a diameter of 5.6cm. Remember that the area of a circles is calculate as A=πr2 and diameter= 2r 2) If a molecule of

asked by Paul on October 6, 2014
10. ## Chemistry

Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. Suppose we react an excess of magnesium metal with 13.2 mL of a 3.00 M solution of hydrochloric acid and collect all of the hydrogen in a balloon at 25oC and 1.00

asked by Priya on May 5, 2011
11. ## Chemistry

You will titrate your weak acid unknowns with a solution of NaOH of about 0.10 mol/L. The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What are the smallest

asked by LU on March 4, 2010
12. ## Qualitative analysis

Aqueous sodium hydroxide is added to a mixture of an aqueous solution of X with some aluminium alloy. On warming, ammonia gas is evolved. When X is treated with aqueous ammonia, a white precipitate that is soluble in excess aqueous ammonia is obtained.

asked by Cheezel on November 17, 2016
13. ## Chemistry

a.) All the compunds are electrolytes, although not all of them are strong electrolytes. Compunds C and D are ionic and compund B is covalent. b.) Nitrogen occurs in its highest possible oxidation state in compunds A and C; nitrogen occurs in its lowest

asked by Amanda on March 26, 2007
14. ## Computer Science

An advertising agency wants to send a letter to all of its clients announcing a new fee schedule. The clients' names are in several different lists (arrays). The company merges the various lists to form one array, but clients could be listed in the array

asked by Anna on September 13, 2011
15. ## To Desire

Your posts have been removed, mainly because you have given absolutely no thought to how you'll solve those problems in your assignment. In the future, please remember these things: 1. This is a homework help website; please put your subject (math,

asked by Writeacher on November 28, 2009
16. ## Quantiative Methods

Western Family Steakhouse offers a variety of low-cost meals and quick service. Other than management, the steakhouse operates with two full-time employees who work 8 hours per day. The rest of the employees are part-time employees who are scheduled for 4

asked by Sharon on November 10, 2007
17. ## Physics (Science)

Hi, For my physics class, we have to design our own experiments to calculate the amount of power exerted for each situation. However, I'm really unsure of how to go about finding the power for the situations. The first situation is doing a push-up, and the

asked by Krissy on October 25, 2012
18. ## Science

1. A student lifts his 2.0-kg pet rock 2.8m straight up. He then lets it drop to the ground. Use the Law of Conservation of Energy to calculate how fast the rock will be moving ..... a. half way down b. just before it hits the ground 2. A 65-kg girl is

asked by Hershey on November 19, 2014
19. ## Sports and Society in Ancient Greece and Rome

OK. I am trying to work on a project and I need help with one or two things. 1. I have come up with an idea, but can't seem to get it to fit in the fields of sports or society in the ancient world. I wanted to do a web page on Actaeon and Artemis, but I

asked by Elisabeth on April 5, 2010
20. ## Social Studies

Hi so i'm at connections academy. I was doing the feudal Europe unit test and wanted to ensure my grade is good. I'm asking you guys to check my work. (if you did the test, or are a teacher) i will put MY answers down below, except for the essay questions.

asked by Ryfurious on May 14, 2019
21. ## Geometry Honors

Boat 1 and boat 2, traveling at constant speeds but not necessarily the same speed, depart at the same time from docks A and C, respectively, on the banks of a man-made circular lake. If they go straight to docks D and B, respectively, they will collide.

asked by Ryan on April 13, 2016
22. ## Spanish Help

Hola! Can you check my work and tell me if it's all right? State whether the command is formal ("Ud.") or informal ("tú"). 1. Come la sopa. Formal. 2. Hable más despacio. Informal. 3. No compres más ropa. Informal. 4. Beba m�s agua. Formal. 5. No

asked by Ashlyn on October 13, 2014
23. ## Physics

1. A student lifts his 2.0-kg pet rock 2.8m straight up. He then lets it drop to the ground. Use the Law of Conservation of Energy to calculate how fast the rock will be moving ..... a. half way down b. just before it hits the ground 2. A 65-kg girl is

asked by Hershey on November 21, 2014
24. ## Calculus

A University of Rochester student decided to depart from Earth after his graduation to find work on Mars. Before building a shuttle, he conducted careful calculations. A model for the velocity of the shuttle, from liftoff at t = 0 s until the solid rocket

asked by Emily on April 21, 2013
25. ## PLEASE CHECK! ELA

Which choice best describes the underlined words in this sentence? There goes that antique fire truck from the car show. A- simple subject B- complete subject C- compound subject D- none of the above I think B. Which choice best describes the underlined

asked by Skye on September 29, 2014
26. ## Chemistry

When 32.0 mL of 0.560 M H2SO4 is added to 32.0 mL of 1.12 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the

asked by Megan on October 20, 2010
27. ## Chemistry

Hi, I was given the reactants for the chemical reaction and I am supposed to write the product. The equation must be balanced. Can someboy please check my work? Thanks :-) 3NaOH + Fe(NO3)3 --> Fe(OH)3 + 3Na(NO3) 2NH3 --> N2 + 3H2 2H2 + o2 --> 2H2O 4Mg +

asked by Lisa on December 9, 2006
28. ## Math Analysis

31. Radioactive decay of material is determined using the formula N = Noe^-kt. Find the constant k for Plutonium-239 given that its half-life is 24,390 years. ==> I don't really get where to start here because the problem does not give you how much

asked by Emily on December 10, 2009
29. ## Social Studies

Where in North America did the Mound Builders live? in the Southwest in the Northwest in the Central Mexico in eastern North America THIS ONE Which statement best describes the agriculture of the Mayas Each year, they rotated the kinds of crops planted.

asked by Valerie on September 27, 2017
30. ## statistics

would someone please work this problem out in steps so I can understand it. book not helping confusing me more. A study was conducted to investigate the relationship between the cost, y (in tens of thousands of dollars), per unit of equipment manufactured

asked by Sue on May 24, 2013
31. ## science

at a construction site a crane lifts a block of mass,m,vertically upwards through a height of 70 m at constant speed by means of a strong cable.The block experiences a force of magnitude 8 N as a result of air friction as it is lifted vertically upwards.

asked by Thalente on March 26, 2013
32. ## HR

Three typical questions asked for assessing candidates for overseas assignments about family considerations are among the following. Which is not a typical question about family considerations for an overseas assignment candidate? A. How is each member of

asked by Blue on July 21, 2018
33. ## Mechanical science

The table planning machine is driven horizontally by hydraulic pressure on a piston contained in a cylinder 80mm in diameter. The on the cutting tool is 5KN,the Mass of the moving part is 1000kgs and coificient friction is 0.05.calculate pressure required

asked by Charles waweru on February 20, 2018
34. ## Hr

Three typical questions asked for assessing candidates for overseas assignments about family considerations are among the following. Which is not a typical question about family considerations for an overseas assignment candidate? A. How is each member of

asked by Blue on July 22, 2018
35. ## physics

It takes you 5 hrs to climb the top of a peak. The altitude of the peak is 400m, and you started from your camp that is an altitude of 300m. Estimate your power output during the climb. First i found that you move 1000m in 5 hrs, which would be .0556m/sec.

asked by Anonymous on October 15, 2007
36. ## Calc

An Olympic-sized swimming pool is a rectangular prism that is 50m long, 25m wide, lled with water to a depth of 1.5m. We are going to pump the water out of the pool with a pump that is 0.5 meters above the surface of the water. Compare the costs of

asked by Jen on May 18, 2014
37. ## Stats/math

The deciles of any distribution are the 10th, 20th,...90th percentiles. The first and last deciles are the 10th and 90th percentiles, respectively. What are the first and last deciles of the standard Normal distribution? HOw would i solve this? thank you

asked by Anne on September 14, 2013
38. ## geometry

If Dave is 6 feet tall and casts a shadow of 15 feet, what is the height of a tree that casts a shadow of 81 feet? Draw a diagram and solve for the height of the tree.

asked by DC on May 21, 2014
39. ## math

Solve the problem by making up an equation. A child is 12 years old, and his father is 32 years older. In how many years will the age of the father be 3 times the age of the child? Just tell me the equation.

asked by john on February 11, 2018
40. ## Math

Timmy has 12 watermelons and Tina has 14, each watermelon with 12.73 inches and 2.7 inches in hight. Then what is the total length of Tina's watermelon's how over Timmy's *Solve for x= the untold length of watermelon*

asked by Anonymous on September 8, 2016

Suppose that 0 < c < ¥ð/2. For what value of c is the area of the region enclosed by the curves y = cos x, y = cos(x - c), and x = 0 equal to the area of the region enclosed by the curves y = cos(x - c), x = ¥ð, and y = 0? i have no idea how to solve

asked by K on November 25, 2010
42. ## physics

A cart has a momentum of 10. kilogram meters per second east before a collision and a momentum of 5.0 kilogram meters per second west after the collision. The net charge in momentum of this cart is ? I am not sure how to solve.

asked by Sunny on January 5, 2013
43. ## English

Read the following lines from “Mother to Son”: So, boy, don’t you turn back Don’t you set down on the steps ‘Cause you finds it kinder hard. What advice is the mother giving with the metaphor used in these lines? A. Son, don’t give up on

asked by Deborah on October 31, 2012
44. ## Java help please

I am trying to run the following program and am getting this error: java.util.InputMismatchException import java.io.*; import java.util.*; public class Pre2 { static Scanner console = new Scanner(System.in); public static void main(String[] args)throws

asked by Mike on March 2, 2008

for questions 1-3,find the sum. 1.5 9/13 + 5 9/13= A.13/74 B.10 12/13 C.11 5/13(I PICKED THIS) D.13/142 --------------------------- 2.3 3/15 +4 2/5= A.2 1/2 B.22 4/5 C.7 3/5( I PICKED THIS) D.5/38 -------------------------- 3.3 4/9 + 2 1/3= A.5 1/3 B.18

asked by Anonymous on December 3, 2013
46. ## US HISTORY 7B

"GOVERNMENT IS NOT THE SOLUTION TO OUR PROBLEMS, GOVERNMENT IS THE PROBLEM." --RONALD REAGAN, INAUGURAL ADDRESS, 1981 BASED ON THE QUOTATION, WHICH OF THE FOLLOWING BEST REFLECTS RONALD REAGAN'S POLITICAL VIEWS? HE WANTED AMERICAN CITIZENS TO RETURN TO

asked by MYSTERY STUDENT on May 18, 2017
47. ## Help --->Chemistry

1) Complete and balance the following chemical reactins: 2HCI(aq)+Pb(NO3)2(aq)---> 2HI(aq)+K2SO3(s)---> Pb(NO3)2(aq)+2KCI(aq)---> Ba(NO3)2(aq)+Na2SO4(aq)---> K2CO3(aq)+Ba(NO3)2(aq)---> HCI(aq)+AgNO3(aq)---> 2) How could you separate gold from a mixture of

asked by melek on February 26, 2012
48. ## Chemistry

When elemental sulfur,S8,is heated with AgF,a gas forms that contains only sulfur and fluorine. The following tests were done to characterize this gaseous product. *The density of the gas was found to be 0.807g/L at 152mmHg and 35 degrees celsius. *When

asked by rasuka_geo on November 10, 2009
49. ## Precalc

How do you know what quadrant these two are in? I'm having a little trouble determining. Can someone check if my answers are correct for all and help me fix it to make it right. 10.) The point is on the x-axis and 12 units to the left of the y-axis. My

asked by Josh on August 31, 2015
50. ## Biology

27. Part A. Make a punnett square (as best as you can in this online format) and cross parents both with the thumb genes Aa (A=normal thumb, a=hitchhikers thumb) and show the results. (1 pt) A a A AA Aa a Aa aa 27 Part B. (1 pt) Approximately what

asked by Zoi on January 26, 2017
51. ## Spanish (Sra)

Can someone check my work? English: My cousin came over to play. We were running around the living room. My brother and cousin crashed into each other. And my brother cut the corner of his eye open. Spanish: My primo vino a jugar, Nosotros estábamos

asked by Larry on October 8, 2009
52. ## English- poetry

Can anyone find any poetic devices in this poem? (metaphors, similes, personification, etc) AMBITION BY DES WALSH Once upon a time A poor man Named Marcus Sat all day Hoping for food Outside a kitchen door At night he would think Of the golden sands Where

asked by Leanne on September 22, 2011
53. ## electriacl safety

What are some important elements that should be included in any good training program. Explain. I will be happy to critique your thinking on this. If this subject isn't thoroughly covered in your text or class notes, you may find some helpful information

asked by Mary on June 25, 2007
54. ## US Gov't

Explain the legal basic for the dederal courts jurisdiction over cases. Explain the different kinds of cases that can be heard by dederal courts Please note that we don't do students' homework for them. Our tutors try to give you the information to help

asked by jenny on May 3, 2007
55. ## English- poetry

Can anyone find any poetic devices in this poem? (metaphors, similes, personification, etc) AMBITION BY DES WALSH Once upon a time A poor man Named Marcus Sat all day Hoping for food Outside a kitchen door At night he would think Of the golden sands Where

asked by Leanne on September 22, 2011
56. ## Language Arts

I have these discussion questions on connexus and I have no idea how to answer them, can u help? Here's what it says: Do We Need Words to Communicate Well? In this discussion, you will post comments related to determination and communication. Refer to the

asked by i luv my ipadtouch on April 17, 2018
57. ## Trig.

sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times (-2/tan)=tan (-2/cos^2tan)times tan=tan(tan) sq. root of (-2/cos^2)= sq. root of (tan^2) sq. root of (2i)/cos=tan I'm not sure if I did this right. If I didn't, can you show me the

asked by Trig on January 9, 2010
58. ## English

Please help me come up with some ideas for this, need to find appeals to emotion and appeals to reason In "All Together Now," Jordan uses Appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph,

asked by Bb on December 3, 2018
59. ## Physics

A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.8 cm. How much work is done (a) by the block

asked by Fiona on March 16, 2014
60. ## math

You figure that you will buy property many times and you endeavor to work out a formula that will tell you the price of the land and the price of the buildings any time. So suppose the price for the land and buildings combined is S (for "sum") and the land

asked by Sarah on September 16, 2010

A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.8 cm. How much work is done (a) by the block

asked by Fiona on March 16, 2014
62. ## Algebra 1

A design calls for a rectangular garden with an area of 180 square feet. If the length is to be 3 feet more than the width, set up an equation and solve that equation to find the dimensions of the garden. I drew a sketch and labeled the width "w" and the

asked by Meloney on May 6, 2009
63. ## Maths

Please could someone help or complete an unusual calculation for me. I need to solve a triangle where all the angles are known and 2 of the sides. 2 of the sides are identical and 2 of the angles are identical. One angle is one sixtieth of one degree. The

asked by Mike on January 4, 2017
64. ## algebra

Solve. Leave the answers in terms of pi ?. a)Find a polynomial for the sum of the areas of the circles shown in the figure. b)Find the sum of the areas when r = 5 and r = 11.3. this is what I got but I did not do it right. I needed to To write an

asked by Anna on July 20, 2012
65. ## word problem

A person invests \$7,500 part at 5% and the remainder at 4% simple interest. If the total interest at the end of the first year was \$346.50, find the amount invested at 4%. Let x = amount invested at 5% Let (7500 - x) = amount invested at 4% 0.05x +

asked by Dan on July 17, 2005
66. ## algebra

Solve. Leave the answers in terms of pi ?. a)Find a polynomial for the sum of the areas of the circles shown in the figure. b)Find the sum of the areas when r = 5 and r = 11.3. this is what I got but I did not do it right. I needed to To write an

asked by Anna on July 21, 2012
67. ## Calculus

An airplane is flying at a speed of 350 mi/h at an altitude of one mile and passes directly over a radar station at time t=0. a) Express the horizontal distance d (in miles) that the plane has flown as a function of t. b) Express the distance s between the

asked by Chelsea on September 21, 2010
68. ## principle of management

Fernando, a manager in a retail store, is changing the work schedule of his long-term employees for the holiday season. He is using the same basic schedule as he did last year. Fernando should expect that his employees will be: A) terribly upset and quit

asked by vedrana on March 12, 2012
69. ## physics

carol and bruno drag a box of mass 58.0 kg along a frictionless floor. Carol pushes the box with a force of 11.4 N at an angle of 40.0 downward from the horizontal. Bruno pulls the box from the other side with a force of 11.0 N at an angle of 40.0 above

asked by sophie on April 3, 2009
70. ## chemistry

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 6.35-g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the

asked by Anonymous on February 24, 2012
71. ## Chemistry

An unknown molybdate (MoO4^-2) solution (50.00ml) was passed through a column containing Zn(s) to convert molybdate into Mo^3+. One mole of MoO4^-2 gives one mole of Mo^3+. The resulting sample required 22.11 ml of 0.01234 M KMnO4 to reach a purple end

asked by Ken on October 17, 2011
72. ## Chemistry

Would it be correct to say that it is harder for a weak electrolyte to dissociate in a solution than it is for a stronger electrolyte to dissociate? If a weak electrolyte can't dissociate completely it wouldn't be able to form an equilibrium reaction

asked by Chrissy on April 13, 2007
73. ## Instantaneous rate of change

Please help.. Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by

asked by Kjd on May 23, 2012
74. ## Chemistry

2.The solubility of sodium chloride at 20 degrees Celsius is 358g/1000g H20, or 358g/1358g solution. How many grams of sodium chloride would you expect to dissolve in 2200 grams of H20 at 20 degrees Celsius?

asked by Aileen on November 9, 2014
75. ## BioChemistry

I had to calculate the conjugate base/acid ratio of phenol red in a phenol red solution prepared with a buffer I made and the base/acid ratio of just the phosphate buffer I made. I need to understand why these ratios are different. Can anyone help?

asked by Amy on September 22, 2011
76. ## College Physics

Current passes through a solution of sodium chloride. In 1.00 second, 2.68 x 10^16 Na+ ions arrive at the negative electrode and 3.92 x 10^16 Cl-ions arrive at the positive electrode. What is the current passing between the electrodes? Current = mA What is

asked by Lanise on February 6, 2010
77. ## Math

Danielle will use the instructions in the box below to make a cleaning solution "Add 13 cups of water to every 2 cups of concentrated cleaner" Which of the following proportions can be used to find W, the number of cups of water Danielle will add to 5 cups

asked by Lyla on May 6, 2018
78. ## STATISTICS PLESE HELP!!

studies indicate that drinking water supplied by some old lead-lined city piping systems may contain harmful levels of lead. an important study of the Boston water supply system showed that the distribution of lead content readings for individual water

asked by Courtney on November 8, 2010
79. ## statistics

studies indicate that drinking water supplied by some old lead-lined city piping systems may contain harmful levels of lead. an important study of the Boston water supply system showed that the distribution of lead content readings for individual water

asked by dinhgde on March 14, 2011
80. ## Chemistry

What is the pH of the solution created by combining 12.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH:12.30 pH w/ HCl _________ pH w/ HC2H3O2 _________ What are the pH values if you take

asked by HELP!! on April 29, 2012
81. ## Chemistry

What is the pH of the solution created by combining 12.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH:12.30 pH w/ HCl _________ pH w/ HC2H3O2 _________ What are the pH values if you take

asked by HELP!! on April 29, 2012
82. ## english

These excerpts are from a topic outline. Which one uses parallel construction in the subpoints? A. Goals 1.Traveling through Europe 2.Earning a degree 3.To start my own business B. Goals 1.Building my own log cabin in Vermount 2.I want to visit every major

asked by Anonymous on August 7, 2008
83. ## English

1. He used to take a walk in the park. 2. He used to swim in this river. 3. He used to live in Chicago. 4. He used to drive a car to New York. 5. He used to walk his dog along the road. 6. He used to play soccer when he was young. 7. He used to cook

asked by rfvv on September 9, 2015
84. ## English ErR.

Check Jamal was all doing this to keep his heart safe. It was unique way to protect himself from the wounds of love and dishonesty. But I believe there is no substitute of true love and better understanding. The force of love is the energy that flows

asked by mujahid on October 13, 2010
85. ## Physics

Suppose that a comet that was seen in 545 A.D. by Chinese astronomers was spotted again in year 1937. Assume the time between observations is the period of the comet and take its eccentricity as 0.11. What are (a) the semimajor axis of the comet's orbit

asked by Austin on November 12, 2017
86. ## IT

Give the URL of two different e-commerce Web sites. For one of the Web sites, outline the key technology infrastructure components necessary to support its e-commerce business the two web sites I decided on was ebay --which is consummer selling to

asked by Ray on June 12, 2007
87. ## Physics

A 5.00 kg carrying a charge of Q=60 uC is connected to a spring for which k=100N/m. The block lies on a frictionless horizontal track and the system is immersed in a uniform electric field of E=5.0e5 V/m. If the block is released from rest when the spring

asked by Jona F on March 28, 2012
88. ## Physics

A 5.00 kg carrying a charge of Q=60 uC is connected to a spring for which k=100N/m. The block lies on a frictionless horizontal track and the system is immersed in a uniform electric field of E=5.0e5 V/m. If the block is released from rest when the spring

asked by Jona F on March 28, 2012
89. ## Calculus II

A tank in the shape of a right-circular cone sits with its base at ground level and its vertex 4 m below ground level. The base has a diameter of 4 m. The tank is full of water. Set up, but do not evaluate, a definite integral that gives the work done in

asked by Anonymous on April 26, 2018
90. ## Quadratic equation...

Hi Can anyone help me solve the quadratic equation for the following:- The motion of a two stage rocket is stated by it height y in metres above the ground since t seconds since launch. Flies vertically Ist stage burns for 5 seconds and cuts out. 2nd stage

asked by Leo on December 1, 2007
91. ## physics

The turbine and associated rotating parts of a jet engine have a total moment of inertia of 23 kg m2. The turbine is accelerated uniformly from rest to an angular speed of 140 rad/s in a time of 27 s. (a) Find the angular acceleration. (b) Find the net

asked by HELP!!!! on March 26, 2011
92. ## chemistry

Classify each substance as either arrhenius acid or base: A) HF (aq) B) Ba(OH)2 (aq) C) H2SO4 (aq) D) NH4OH (aq) My work A) arrehenius acid B) arrhenius base C) arrhenius acid D) arrhenius base Am i right

asked by ROSE on January 10, 2015
93. ## English

1. If it rains tomorrow, I will not start. 2. If it should rain tomorrow, I will not start. 3. If it rained tomorrow, I would not start. 4. If it rained yesterday, he didn't go to work. ------------ Are they all grammatical? Which ones are not grammatical?

asked by rfvv on November 30, 2014
94. ## Information Systems in Organizations

Directions: Test your knowledge of this topic by selecting the best answer for each of the following questions. When you click the Submit button, you will see your score and the results will go to your instructor. You may want to refer to the general

asked by Denise on May 17, 2012
95. ## Accounting

Aunt Rhea Corporation Income Statement For the Year Ended December 31, 2015 Service Revenue \$ 900,000 Operating Expenses 700,000 Net Income before Income Tax \$ 200,000 Gain on Investment Sale 10,000 Net income Before Income Taxes \$ 210,000 Income Tax

asked by Daniel on May 2, 2016
96. ## Math

Find a quick and easy method to compute the sum of the first 100 counting numbers. I can't use a calculator. I can't figure out an easy way. 1+2+3+4+5...........98+99+100 Carl Freidrich Gauss had no idea as to how famous his name would become when he

asked by Tony on October 3, 2006
97. ## Jess

Let f(x)=3x^3 +7.5x +1. In this problem you will estimate f'(3) by computing the average rate of change of f(x)over a small interval. Round your answers to three decimal places. First choose the interval of length .1 with 3 being the left endpoint of the

asked by Calculus on February 10, 2013
98. ## Art

For a project i have to put pictures on my diagram that represent words. What would a picture be that represents descriptivness? setting? plot? characters? Thanks Are you illustrating a specific story or book? Or is your diagram representing these general

asked by Anonymous on June 12, 2006
99. ## science

A block with mass 35kg rests on an incline 13 degrees to the horizontal calculate the : (a) perpendicular weight component (Fc) on the inclined plane; (b) parrallel weight component (Fs) on the inclined plane.. This is the question exactly out of the book

asked by michelle on September 29, 2006
100. ## English

1. He will have finished the work by the time you come. 2. He will have gone to Japan next week. 2-2. He will have gone to Japan by next week. 3. He will have read the book three times if he reads it again. 4. He will have lived in Chicago for ten years

asked by rfvv on June 29, 2017